3.
4)
Monitoring chemical
and hydrologic
characteristics
of selected existing and newly-installed wells as is deemed
necessary for construction of the most useful model of atoll
hydrology.
.
5) Continued evaluation of tide signals and water
levels in the ocean and lagoon and on the reef to determine
exterior forcing functions for island groundwater movement.
6)
Incorporation of existing data and partial models
into an overall model describing the hydrology, geochemistry
and species residence times in the atoll environment, and
ultimately predicting environmental half-lives for the
various radionuclides in the different ecosystem "compartments."
Visits to Bikini atoll have provided valuable data on
that location and have additionally provided extremely valuable opportunities to test and validate observations or models
originating in the Enewetak study.
We propose to continue
such participation in any Bikini atoll survey/research visits.
field
year;
the
With
the
trips
to
loss of LCU support, we anticipate that major
Enewetak will
be made
only 2 or
these will be supplemental, however,
on-site
technician and
occasional
3
times
per
by the work of
1-2 man visits.
Bikini
trips will be undertaken when joint use of ships of opportunity
is feasible.
1S.
Relationship to Other Projects:
This project is directly
integrated with the LLL Enewetak-oriented projects
(V.
E. Noshkin and W.
Robison, P.I.'s).
The total output
of the combined projects is directed toward a complete
description and predictive model of the biogeochemical cycles
and processes controlling radionuclide distributions and
transport in the atoll environment.
In addition,
there
hydrology aspect of this
circulation study (S. V.
is
strong interaction between the
study and the DOE-funded
Smith and E. D.
Stroup,
lagoon
P.I.'‘'s),
with both projects directly concerned with tidal characteristics
and
The
cross-reef
two
support
ongoing
transport of water and water-borne
species.
UH projects and the Robison LLL project currently
a joint-use
support for
field technician at Enewetak to provide
all projects between major field trips.
Logistic support and scientific coordination is
shared with the Mid- Pacific Marine Lab.
16.
also
Technical Progress in FY 1978:
Because tropical storm Nadine
inflicted significant damage on Enewetak during January, 1978
and
forced
cancellation of
that period,
research
trips
scheduled
during
FY 78 results are running approximately 3 months
behind the anticipated schedule.
It is questionable whether